1.2 Objectives of Project
The main objective of this study is to develop a wireless remote control utilizing Xbee for mobile robot application. This objective is supported by the
following sub objectives: 1
To develop a wireless remote control system by using Xbee. 2
To design the communication protocol between the PIC Transmitter and the PIC Receiver.
1.3 Problem Statements
A wireless remote controller nowadays is more preferable compared to wired controller. This is due to the fact that wired controllers are not practical for some
application especially for mobile robot application. However, the wireless signal of the existing wireless connection has distance constraints and the signals are easy to
be interfered making the signal is less reliable. The communication protocol also needs to be modified to meet the new designed function of the controller.
1.4 Scope of Project
Figure 1.1 Block diagram for the whole system
The wireless remote control for mobile robot application uses Xbee Pro series 1 that can covers range up to 750m for outdoor line-of-sight. The frequency
band is 2.4 GHz. This is very suitable for outdoor usage as it can provide a reliable
connection. Figure 1.1 shows how the setup of the controller is done. It is divided into two parts, transmitter and receiver.
PIC that will be used is PIC18F4550. MP Lab Programming will be used to create the communication protocol between the microcontroller of the receiver and
transmitter. The input devices will be push button and joystick.
1.4.1 Software design
MP Lab Programming will be used to create the communication protocol between the microcontroller of the transmitter and receiver. The assignation of the
parameter will be referring to the ASCII code table.
1.4.2 Target User
Target user is for a group that needs a wireless controller to control a mobile robot. It can practically be used for Robot Competition that requires a reliable
wireless controller.
1.5 Project Significance
This wireless controller provides a reliable yet cheaper compared to the other wireless controller in the market. This controller allows user not to worry about the
loss of signal and the distance range that can be supported by the controller. Notice that this controller can support up to 750 meters line of sight with 2.4 GHz
frequency.
The network connection can be locked to prevent any unauthorized users controlling the robot. Besides that, the network is not limited to point-to-point
communication, it can also be set up create a multiple network connections.
In addition, it eliminates nest of wires to connect mobile robot with the controller itself. The chances of the wired being snagged or cut is also eliminated.
1.6 Report Structure
The report consists of five chapters. Chapter 1 discusses the introduction of the project which includes the objectives of the project, problem statements; scope of
the project, project significance and report structure.
Chapter 2 discuss about the Literature review. This chapter included literature review on Q2 and Q4 controller by Quantum Robotic, SKPS by Cytron
Technology and lastly is about 4PLS Controller by Futaba.
The next chapter, chapter 3 discusses about Project Methodology of the project. The methodology involved system analysis, system design, system
development and system testing.
Then, chapter 4 discusses about Result and Discussion of the project. It is about result full decision after the completion of this project.
The final chapter is chapter 5 that explains about conclusion and recommendation
for future
work related
to this
project
CHAPTER II
LITERATURE REVIEW
2
This chapter presents an overview on the related topic and the background related to this study. This chapter covers three controllers literature review.
2.1 Q2 and Q4 controller
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